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US 7,459,234 B2Granted
Battery including aluminum components
AssigneeThe Gillette Company
InventorsFred J. Berkowitz, Nikolai N. Issaev, Jaroslav Janik, Michael Pozin
Life of this patent
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Abstract
A primary lithium battery can include a current collector that includes aluminum, a positive lead that includes aluminum, or both. The aluminum battery components can have high mechanical strength and low electrical resistance.
Claims35
A primary lithium battery comprising:
- a cylindrical housing having a first end and a second end and having a continuous external wall defining an opening at the first end and enclosing the second end;
- an anode including a lithium-containing anode active material;
- a cathode within the housing comprising a current collector, the current collector having an exposed end shaped into a crown including aluminum;
- a separator within the housing between the anode and the cathode;
- a positive lead including aluminum within the housing in contact with the crown;
- and
- a positive external contact in contact with the positive lead, closing the opening defined by the external wall at the end of the housing,
- wherein the battery has an impedance that increases by less than 0.20 Ohms after the battery is dropped six times from a height of one meter onto a hard surface.
5 more elements
A primary lithium battery comprising:
- a cylindrical housing having a first end and a second end and having a continuous external wall defining an opening at the first end and enclosing the second end;
- an anode including a lithium-containing anode active material;
- a cathode within the housing including a current collector including aluminum, the current collector having an exposed end shaped into a crown;
- a separator within the housing between the anode and the cathode;
- a positive lead including aluminum within the housing in contact with the crown;
- and
- a positive external contact in contact with the positive lead, closing the opening defined by the external wall at the end of the housing.
- wherein the battery has an impedance that increases by less than 0.20 Ohms after the battery is dropped six times from a height of one meter onto a hard surface.
5 more elements
Dependencies are inferred from the claim text.